Detections
Analytics

SCA: security update for symfony/http-client, symfony/http-foundation, symfony/symfony (GHSA-38cx-cq6f-5755)

medium Tenable Self-Hosted Container Security Plugin ID 443191

Description

There are packages installed that are affected by a vulnerability referenced in the following CVE:

 - Symfony is a PHP framework for web and console applications and a set of reusable PHP components. From
 5.4.0 to 5.4.53, 6.4.41, 7.4.13, and 8.0.13, NoPrivateNetworkHttpClient and IpUtils::PRIVATE_SUBNETS
 omitted IPv6 transition prefixes such as 6to4, NAT64, Teredo, and IPv4-compatible IPv6, allowing attacker-
 supplied URLs to represent private IPv4 targets in forms that IpUtils::isPrivateIp() did not block. This
 issue is fixed in versions 5.4.53, 6.4.41, 7.4.13, and 8.0.13. (CVE-2026-48736)

Solution

Update the symfony/http-client library and its related packages to version 5.4.53 or later.

See Also

https://github.com/advisories/GHSA-38cx-cq6f-5755

Plugin Details

Severity: Medium

ID: 443191

Version: Revision 1.5

Type: Local

Family: SCA Checks

Published: 6/15/2026

Updated: 7/20/2026

Supported Sensors: Tenable Cloud Security, Tenable Self-Hosted Container Security

Risk Information

VPR

Risk Factor: Low

Score: 3.3

Percentile: 51.2

Vendor

Vendor Severity: Medium

CVSS v2

Risk Factor: High

Base Score: 7.8

Temporal Score: 5.8

Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:N/A:N

CVSS Score Source: CVE-2026-48736

CVSS v3

Risk Factor: High

Base Score: 8.6

Temporal Score: 7.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

CVSS v4

Risk Factor: Medium

Base Score: 6.9

Threat Score: 2.5

Threat Vector: CVSS:4.0/E:U

Vector: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:N/SC:H/SI:L/SA:N

Vulnerability Information

Exploit Ease: No known exploits are available

Patch Publication Date: 6/15/2026

Vulnerability Publication Date: 6/15/2026

Reference Information

CVE: CVE-2026-48736